GB/T 12459  偏心异径管 DN 1050×10-Sch80RE RF3

DN 1050×10-Sch80 RE RF3

wn100-10rfRF1fT/0S1.6/LM Sch14

wn 40-900 RJ0-1.0/data4-RF1.215 K1

47023rf1900-1.4.1

PL200-10RF(B)nRF0S sch-16 RF Sch40 m s

3 FM 1400-1.7.3c2RFRF-1

BL40-2.5RFrfi-16 RFBI RF-18frf68 s)3FR/0 SM0�

BL 2"-150 RFF=6

WN 25-16